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* Big merge of the newregalloc-int64 branch. Lots of changes in two directions:xleroy2013-04-201-268/+0
| | | | | | | | | 1- new register allocator (+ live range splitting, spilling&reloading, etc) based on a posteriori validation using the Rideau-Leroy algorithm 2- support for 64-bit integer arithmetic (type "long long"). git-svn-id: https://yquem.inria.fr/compcert/svn/compcert/trunk@2200 fca1b0fc-160b-0410-b1d3-a4f43f01ea2e
* Remove some useless "Require".xleroy2012-12-301-2/+0
| | | | | | | Update ARM port. git-svn-id: https://yquem.inria.fr/compcert/svn/compcert/trunk@2085 fca1b0fc-160b-0410-b1d3-a4f43f01ea2e
* Merge of branch new-semantics: revised and strengthened top-level statements ↵xleroy2011-07-151-2/+2
| | | | | | of semantic preservation. git-svn-id: https://yquem.inria.fr/compcert/svn/compcert/trunk@1683 fca1b0fc-160b-0410-b1d3-a4f43f01ea2e
* Merge of branch "unsigned-offsets":xleroy2011-04-091-4/+4
| | | | | | | | | | | | | | - In pointer values "Vptr b ofs", interpret "ofs" as an unsigned int. (Fixes issue with wrong comparison of pointers across 0x8000_0000) - Revised Stacking pass to not use negative SP offsets. - Add pointer validity checks to Cminor ... Mach to support the use of memory injections in Stacking. - Cleaned up Stacklayout modules. - IA32: improved code generation for Mgetparam. - ARM: improved code generation for op-immediate instructions. git-svn-id: https://yquem.inria.fr/compcert/svn/compcert/trunk@1632 fca1b0fc-160b-0410-b1d3-a4f43f01ea2e
* Merge of the reuse-temps branch:xleroy2010-09-021-6/+6
| | | | | | | | | | | | - Reload temporaries are marked as destroyed (set to Vundef) across operations in the semantics of LTL, LTLin, Linear and Mach, allowing Asmgen to reuse them. - Added IA32 port. - Cleaned up float conversions and axiomatization of floats. git-svn-id: https://yquem.inria.fr/compcert/svn/compcert/trunk@1499 fca1b0fc-160b-0410-b1d3-a4f43f01ea2e
* Support for inlined built-ins.xleroy2010-06-291-2/+8
| | | | | | | | | | | | | AST: add ef_inline flag to external functions. Selection: recognize calls to inlined built-ins and inline them as Sbuiltin. CminorSel to Asm: added Sbuiltin/Ibuiltin instruction. PrintAsm: adapted expansion of builtins. C2Clight: adapted detection of builtins. Conventions: refactored in a machine-independent part (backend/Conventions) and a machine-dependent part (ARCH/SYS/Conventions1). git-svn-id: https://yquem.inria.fr/compcert/svn/compcert/trunk@1356 fca1b0fc-160b-0410-b1d3-a4f43f01ea2e
* More faithful semantics for volatile reads and writes.xleroy2010-05-231-1/+1
| | | | git-svn-id: https://yquem.inria.fr/compcert/svn/compcert/trunk@1346 fca1b0fc-160b-0410-b1d3-a4f43f01ea2e
* - Extended traces so that pointers within globals are supported as event values.xleroy2010-05-101-1/+1
| | | | | | | | - Revised handling of volatile reads: the execution environment dictates the value read, via the trace of events. git-svn-id: https://yquem.inria.fr/compcert/svn/compcert/trunk@1345 fca1b0fc-160b-0410-b1d3-a4f43f01ea2e
* Merge of the newmem and newextcalls branches:xleroy2010-03-071-13/+15
| | | | | | | | | | - Revised memory model with concrete representation of ints & floats, and per-byte access permissions - Revised Globalenvs implementation - Matching changes in all languages and proofs. git-svn-id: https://yquem.inria.fr/compcert/svn/compcert/trunk@1282 fca1b0fc-160b-0410-b1d3-a4f43f01ea2e
* Added support for jump tables in back end.xleroy2009-11-101-0/+8
| | | | git-svn-id: https://yquem.inria.fr/compcert/svn/compcert/trunk@1171 fca1b0fc-160b-0410-b1d3-a4f43f01ea2e
* Adapted to work with Coq 8.2-1v1.4.1xleroy2009-06-051-5/+5
| | | | git-svn-id: https://yquem.inria.fr/compcert/svn/compcert/trunk@1076 fca1b0fc-160b-0410-b1d3-a4f43f01ea2e
* - Added alignment constraints to memory loads and stores.xleroy2009-01-111-10/+3
| | | | | | | | | | | - In Cminor and below, removed pointer validity check in semantics of comparisons, so that evaluation of expressions is independent of memory state. - In Cminor and below, removed "alloc" instruction. - Cleaned up commented-away parts. git-svn-id: https://yquem.inria.fr/compcert/svn/compcert/trunk@945 fca1b0fc-160b-0410-b1d3-a4f43f01ea2e
* MAJ documentationxleroy2008-07-271-10/+2
| | | | git-svn-id: https://yquem.inria.fr/compcert/svn/compcert/trunk@702 fca1b0fc-160b-0410-b1d3-a4f43f01ea2e
* Simplification de la semantique de LTL et LTLin. Les details lies aux ↵xleroy2008-07-251-41/+22
| | | | | | conventions d'appel sont maintenant geres de maniere plus locale dans la passe Reload. git-svn-id: https://yquem.inria.fr/compcert/svn/compcert/trunk@701 fca1b0fc-160b-0410-b1d3-a4f43f01ea2e
* Nettoyage du traitement des signatures au return dans LTL et LTLinxleroy2008-07-071-10/+16
| | | | git-svn-id: https://yquem.inria.fr/compcert/svn/compcert/trunk@690 fca1b0fc-160b-0410-b1d3-a4f43f01ea2e
* Ajout license, README, copyright noticesxleroy2008-01-271-0/+12
| | | | git-svn-id: https://yquem.inria.fr/compcert/svn/compcert/trunk@489 fca1b0fc-160b-0410-b1d3-a4f43f01ea2e
* Documentationxleroy2007-08-051-5/+20
| | | | git-svn-id: https://yquem.inria.fr/compcert/svn/compcert/trunk@386 fca1b0fc-160b-0410-b1d3-a4f43f01ea2e
* Fusion des modifications faites sur les branches "tailcalls" et "smallstep".xleroy2007-08-041-0/+255
En particulier: - Semantiques small-step depuis RTL jusqu'a PPC - Cminor independant du processeur - Ajout passes Selection et Reload - Ajout des langages intermediaires CminorSel et LTLin correspondants - Ajout des tailcalls depuis Cminor jusqu'a PPC git-svn-id: https://yquem.inria.fr/compcert/svn/compcert/trunk@384 fca1b0fc-160b-0410-b1d3-a4f43f01ea2e
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